Swift-XRT Survey of Fermi Unassociated Sources


These results are part of the Swift program to follow-up Fermi unassociated sources in an attempt to find X-ray counterparts to the unidentified gamma-ray sources. As new observations are performed, these pages will be updated in nearly real time. Please use these results as a guide and proceed with caution when using them in a publication since they are the result of an automated analysis.

When using these data and results in publications, please reference M.C. Stroh & A.D. Falcone 2013, ApJS, 207, 28; arXiv: 1305.4949 for a description of many of the analysis techniques used to reduce these data (note: a more detailed paper describing the complete data set and analysis is forthcoming). Please contact Abe Falcone and Michael Stroh at unassociated@swift.psu.edu if you have any questions about the program or the analysis, or to simply to let us know that you've made use of these data.


Caution: For completeness, sources are listed if the "detection" exceeds 3 sigma. The significances and images are shown so you can make more stringent significance cuts, if desired.

4FGL J0744.9-4028

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0744.9-4028 Swift-XRT detections in the field for 4FGL J0744.9-4028

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 07 44 10.61 -40 34 24.72 4.97 (6.1 ± 1.3) x 10-3 32 5.316 4.786
2 07 44 51.45 -40 34 40.93 6.21 (3.5 ± 1.0) x 10-3 17 3.561 3.622
3 07 45 25.58 -40 26 03.18 5.82 (3.1 ± 0.9) x 10-3 19 3.567 3.349

Rejected Excesses (Due to Overlaps or SNR(Sosta) < 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 07 44 37.65 -40 32 21.18 6.21 (2.5 ± 0.9) x 10-3 13 3.201 2.906
2 07 44 48.46 -40 36 38.98 6.21 (1.9 ± 0.7) x 10-3 14 2.746 2.655
3 07 44 41.68 -40 33 53.76 6.41 (1.7 ± 0.8) x 10-3 12 2.433 2.087

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0744.9-4028 Swift-XRT image with known radio, optical and UV sources for 4FGL J0744.9-4028


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 HD 63006 07 44 56.76 -40 27 46.44 0.61 HIC
PPM 312118 07 44 56.74 -40 27 46.44 0.62 PPM
CD-40 3410 07 44 56.71 -40 27 46.08 0.62 ACRS
HIP 37790 07 44 56.74 -40 27 46.08 0.62 HIPPARCOS
SAO 218950 07 44 56.66 -40 27 47.16 0.63 SAO
2 MGPS J074515-403211 07 45 16.01 -40 32 12.12 5.18 MGPS2
TGSSADR J074516.0-403212 07 45 16.10 -40 32 12.12 5.20 GMRTAS150M
3 MGPS J074523-402448 07 45 23.81 -40 24 47.88 5.62 MGPS2
4 ATPMN J074438.2-403216 07 44 38.21 -40 32 17.16 5.87 ATPMNCAT
AT20G J074438-403217 07 44 38.21 -40 32 17.16 5.87 AT20G
TGSSADR J074438.2-403217 07 44 38.21 -40 32 17.88 5.88 GMRTAS150M
MGPS J074438-403217 07 44 38.21 -40 32 17.16 5.88 MGPS2
PMN J0744-4032 07 44 38.40 -40 32 21.12 5.90 PMN
5 HIP 37739 07 44 26.86 -40 33 01.44 7.97 HIPPARCOS
PPM 312114 07 44 26.86 -40 33 01.80 7.98 PPM
HD 62912 07 44 26.86 -40 33 02.16 7.98 HIC
CD-40 3399 07 44 26.86 -40 33 02.16 7.98 ACRS
SAO 218946 07 44 26.81 -40 33 02.52 7.99 SAO
6 CD-40 3421 07 45 17.04 -40 20 12.12 8.52 ACRS
PPM 755171 07 45 17.04 -40 20 11.40 8.53 PPM
7 TGSSADR J074450.3-403639 07 44 50.40 -40 36 38.88 8.78 GMRTAS150M
MGPS J074450-403641 07 44 50.11 -40 36 42.12 8.84 MGPS2
8 PPM 755154 07 44 35.26 -40 35 37.68 8.88 PPM
9 PPM 312121 07 45 13.37 -40 39 56.16 12.17 PPM
CD-40 3419 07 45 13.34 -40 39 56.52 12.17 ACRS
SAO 218953 07 45 13.27 -40 39 56.88 12.18 SAO
10 MGPS J074552-403904 07 45 52.20 -40 39 03.96 14.87 MGPS2

Penn State University Goddard Space Flight Center Swift